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Unit 2.
PROPERTIES
OF
MATTER
Francesco Scudellari – Comenius Assistant 2010/2011
Francisco Rodriguez Marín Institute – Osuna (Spain)
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What is matter?
- Matter is anything that occupies space
and can be measured
Can you give me some examples of matter?
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Examples of matter
Everything around us is made of matter
rocks
water
animals
plants
planets
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Properties of matter
Two pieces of matter cannot occupy the
same space
– Example: the sun cannot occupy the same
place in space as the moon!!
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Bodies of matter, systems of matter
Bodies of matter (BODY = CUERPO):
Objects having definite limits.
Systems of matter:
Things with limits that are not precise
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a stone a tree
the sea
a forest
a house
a seashell
Yourself!
(=tú mismo/a)
a mountain range
Which is a body of matter and which a system of matter?
BODY
(has got definite
Ilimits)
BODY SYSTEM
(doesn’t have precise limits)
BODY
BODY
BODYSYSTEM
SYSTEM
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Extensive properties of matter
• Extensive properties depend on the
amount (=cantitad) of matter present
– Examples: mass, weight, length, volume
This cube of stone has mass
of 4 kg, a length of 3 cm, and
a volume of 27 cm3
Mass, length, volume depend on the amount of
matter present!
This cube of stone has mass
of 120 kg, a length of 20 cm,
and a volume of 4000 cm3
!!!!!
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Intensive properties of matter
• Intensive properties of matter do not
depend on the amount (=cantitad) of
matter present
Examples of intensive properties: density,
color, boiling point
(to boil = hervir)
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Example
They have different volume, length, mass, etc.
But they have the same boiling point (100ºC):
BOILING POINT IS AN INTENSIVE PROPERTY!
A pan full of water A thermal pool
At which temperature does the water in the pan boil?
At which temperature does the water in the pool boil?
100ºC
100ºC
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Matter can be measured
• Some extensive and intensive properties
can be measured
For example, we can measure properties such as:
LENGTH (=longitud) (extensive)
VOLUME (extensive)
DENSITY (intensive)
MASS….. (extensive)
Do you understand the verb to measure?
Can you translate it in Spanish?
TO MEASURE = MEDIR
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MEASURING LENGTH
• Length: the distance between two points
We use rulers and measuring tape to
determine length
RULER MEASURING TAPE
In Europe, what are the most common units of
measurement for length?
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Units of Length:the Ladder Method
Km
Hm
Dam
m
dm
cm
mm
×10 for each step
÷10 for each step
For example:
15 m = …… cm1500
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25 Hm = …… m
1 Km = …..…… mm
Km
Hm
Dam
m
dm
cm
mm
×10 for each step
÷10 for each step
725 dm = …….. Dam
1,000,000
2,500
7.25
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MEASURING AREA
• Area: the space occupied by two dimensions,
length × width
The area of this rectangle is:
4 × 2 = 8
4
2
What is the unit of
measurement for area?
Square metres (m )2
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Units of AreaKm2
Hm2
Dam2
m2
dm2
cm2
mm2
×100 for each step
÷100 for each step
15 cm = …… mm
250 mm = …..cm
13 Km = ……… Dam
2.5
1,500
130,000
2 2
2 2
2 2
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MEASURING VOLUME
• Volume: the total space occupied by a
body, length × width × height
Example: the volume of a fish tank
Volume is measured in ………….
Cubic metres
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Units of Volume
Km3
Hm3
Dam3
m3
dm3
cm3
mm3
×1000 for each step
÷1000 for each step
For example: 12 m = …………. cm
3
3
12,000,000
And 1600 cm = ……… dm
3
3
1.6
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MEASURING CAPACITY
• Capacity: the total space occupied by a
fluid (another way of measuring volume)
Example:
the capacity of a
bottle of Coke or
of a fuel tank
I am sure you know at least one unit of measurement
of capacity. Can you speak its name aloud?
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One of the most commonly used
units of capacity is….
LITRE
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Units of Capacity
KL
HL
DaL
L
dL
cL
mL
×10 for each step
÷10 for each step
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MEASURING MASS
• Mass: the amount of matter in a body
– Measured in grams (g) or kilograms (kg) using
a scale
A scale is not this: A scale is this:
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Units of Mass
Kg
Hg
Dag
g
dg
cg
mg
×10 for each step
÷10 for each step
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MEASURING DENSITY
• Density: how concentrated the mass is,
mass ∕ volume
Example: which object has the higher density,
an anvil ( ) or a sponge( ) ?
ANSWER: the anvil, because its mass is more concentrated!
The unit of measurement for density is….
g/cm (grams over cubic centimetres)
3
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TEMPERATURE
• Temperature: the degree of hotness or
coldness of a body or system; the thermal
energy of a body
– Measured in degrees Celsius (°C), Fahrenheit
(°F), and Kelvin (K)
• How do we measure temperature here
in Europe?
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To measure temperature, in Europe we use……….
Celsius degrees! (ºC)
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